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- :.: -. <br />~~~_~ <br />1~ ~ s <br />a ~ ~ _~ <br />C <br />ENGtNEEg1NG 6 SUINEYlHQ tNC. <br />April 2l, 1999 <br />Harry Kenney <br />Colorado Division ofM"utetal K Geology <br />1313 Sherman 5ue~, Room 215 <br />Denvu, Gt0 80203 <br />RL': CARBON JUNCTION MINES NO. C-92.080 <br />f>mr Hang. <br />111 IIIIIIIIIIIII Ill <br />659 SOUiH CAf?INO OED R!O <br />~m 1'ROI[-gSONAL CQVTIR . IlNl1 A-1 <br />P06i OFFICE BOK 91 <br />(111RAIVGO, COLORp00 HI'.'Dl4cM'1 <br />iEl.EP4pnE 9762a~. X705 <br />! iX 9]n )l7~ Y/ IO <br />CONSULTING GVIL AND SANITAf1Y ENGINEF:R)NG <br />CJrNO, U71LffV' AND CON57RUC770N Si/RVEYS <br />In accordance with earlier discussions wish Jim Hendricks, representing Carbon Junction <br />Mine, end Mike Savage of Savage & Savagt; God' Engineetvlg has preparnf utaps and reports <br />covering the filling sad contouring of the fill pile which exists along the utain haul road. <br />Specifically, we have prepared an "as-constructed" ebutoar nrap of the prie which shows ille <br />design topography (from Map 5-10) overlaid with the actual Gn'LShed topography. Aisn, we have <br />had Lambert & Associates run a representative "Slope Stability Analysis" for the pile as well <br />'l'ire results oCboth are attached. <br />Ffp1D the map we have determined that the Permitee has prepared the finished pik to <br />essentially comply with the ticsi~a. Thane is some difference in the `Saose" wnfigwatian near <br />the north-ccrttral portioa, but that does nut eRecl the overall draiaage characteristics from the <br />pile. Frain earlier compeaion tcstmg we deterntinod shat We material was placed and compactat <br />in compliance witls the Permit and from the attached geetectmical report we tuve desermined Char <br />a minimum safety factor of 2.9 exists on the slopes along the pde. <br />Based on the above mentionod information, T have concluded tl>et the shape and uability <br />of the tilt pile meets the regltitrtnent of the desiga and the Perms. <br />et: 1) Jim Hendricks (wlenclosrrres) <br />2} fvl~ce Savage <br />